Click here for more information about the Red List categories and criteria

Justification of Red List categoryThis species is classified as Critically Endangered as it is apparently undergoing an extremely rapid population decline, as measured by numbers on both the breeding and wintering grounds. It is now absent or occurs in extremely reduced numbers over the majority of its former breeding and wintering grounds and is common nowhere. It is thought that wetland destruction and over-harvesting of both birds and eggs are the key reasons for its decline.

Recommended citation
BirdLife International (2018) Species factsheet: Aythya baeri. Downloaded from
http://www.birdlife.org on 19/11/2018.
Recommended citation for factsheets for more than one species: BirdLife International (2018) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 19/11/2018.